(CNN)-- Norway's navy announced on Monday that it will help search for the missing plane of 20th century explorer Roald Amundsen ... researchers believe Amundsen's plane crashed in 1928.

Roald Amundsen lived to experience other polar ... While flying on a rescue mission in 1928, Amundsen was killed when his plane crashed into the Arctic Ocean. That same year, speaking to a ...

Six years later Roald Amundsen would ... Dornier-Wals flying boats crash-landed after eight hours, having covered about 600 miles—well short of the North Pole. Amundsen and his crew spent ...